H3C Technologies H3C S12500-X Series Switches - Manual (Page 159)

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Step Command Remarks
4. Configure a source address or
source interface for the tunnel
interface.
source { ip-address |
interface-type interface-number }
By default, no source address
or source interface is
configured for the tunnel
interface.
The specified source address or
the primary IP address of the
specified source interface is
used as the source IP address of
tunneled packets.
5. (Optional.) Set the DF bit for
tunneled packets.
tunnel dfbit enable
The DF bit is not set for tunneled
packets by default.
6. Return to system view. quit N/A
7. (Optional.) Enable dropping of
IPv6 packets using
IPv4-compatible IPv6 addresses.
tunnel discard
ipv4-compatible-packet
The default setting is disabled.
Configuration example
Network requirements
As shown in Figure 57 , configure an ISATAP tunnel between the switch and the ISATAP host so the ISATAP
host in the IPv4 network can access the IPv6 network.
Figure 57 Network diagram
Configuration procedure
• Configure the switch:
# Specify an IPv6 address for VLAN-interface 100.
system-view
[Switch] interface vlan-interface 100
[Switch-Vlan-interface100] ipv6 address 3001::1/64
[Switch-Vlan-interface100] quit
# Specify an IPv4 address for VLAN-interface 101.
[Switch] interface vlan-interface 101
[Switch-Vlan-interface101] ip address 1.1.1.1 255.0.0.0
[Switch-Vlan-interface101] quit
# Create service loopback group 1 and specify its service type as tunnel.
[Switch] service-loopback group 1 type tunnel